How can we improve Checkvist?

Our problem is that 500MB is way too little for our needs. We would like to embed unlimited images within our items. Ideally, it would be great to be able to quickly embed external images directly from Google Drive, OneDrive, Dropbox, or any URL for that matter. One necessary feature for this to work would be the option to quickly specify size of the embedded image (and have Checkvist remember the last size you entered).

Currently, we are hacking size-specified images into items like this:

<img src="https:url" width="300" height="400" />

However, that is a tedious way to do it. It would be amazing if we could just drag and drop images into items to embed them. In the settings, we could choose, upon drag-and-drop, whether the image is uploaded to Checkvist's servers or externally referenced (in order to avoid using Checkvist storage up).